We have spoken before about the horrifying possibility that your cat (or your 50 cats, depending on how seriously you're taking your cat lady duties) has infected your brain with a parasite called Toxoplasma gondii. Previous research has shown that T. gondii, which is transmitted via cat feces, is linked to schizophrenia and other behavior problems, and now a new study has found that women infected with it are more likely to kill themselves. The research looked at more than 45,000 Danish women and found that those with T. gondii were 1.5 times more likely to attempt suicide than women who didn't have the parasite. That is a very sad fact, indeed—especially since it's estimated that a third of the world's population has it.
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